Content-Based Data Typing

Use the CONTENT field to specify data typing based on the content of the file. Content-based data typing can be used in combination with name- or location-based data typing.

The typing can be based on either string or numeric content for files. The first byte in the file is numbered 0.

• For string content of a file, use the syntax:

  	CONTENT  starting_byte string string
  

• For number content of a file, use the syntax:

  	CONTENT starting_byte byte number
   	CONTENT starting_byte short number
   	CONTENT starting_byte long number
  

• For the contents of a directory, use the syntax:

  	CONTENT 0 filename "file_name"

  Use standard C notation for octal (leading o) and hexidecimal (leading oX) numbers.

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  Note –

  Use of content-based data typing will result in slower system performance. Wherever possible, use name- and location-based typing instead.

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  For example, the following data type, Writable_Wingz, applies to all files with write permission containing the string WNGZ at the beginning of the file.

  	DATA_ATTRIBUTES Writable_Wingz
  	{	
   		…
   	}
  
   	DATA_CRITERIA Writable_Wingz_Criteria
   	{
   		CONTENT						0 string WNGZ
   		MODE							w&!d
   		DATA_ATTRIBUTES_NAME	Writable_Wingz
   	}